| 2001
|
World Youth Championships
|
Debrecen, Hungary
|
2nd
|
400 m
|
47.12
|
| 1st
|
Medley relay
|
1:50.46
|
| European Junior Championships
|
Grosseto, Italy
|
1st
|
4x400 m relay
|
3:06.12
|
| 2003
|
European Junior Championships
|
Tampere, Finland
|
3rd
|
400 m
|
46.69
|
| 2nd
|
4x400 m relay
|
3:08.62
|
| 2005
|
European U23 Championships
|
Erfurt, Germany
|
11th (sf)
|
400 m
|
46.62
|
| 1st
|
4x400 m relay
|
3:04.41
|
| Universiade
|
Izmir, Turkey
|
7th
|
400 m
|
46.89
|
| 1st
|
4x400 m relay
|
3:02.57
|
| 2006
|
World Indoor Championships
|
Moscow, Russia
|
2nd (h)
|
4x400 m relay
|
3:06.10
|
| European Championships
|
Gothenburg, Sweden
|
3rd
|
4x400 m relay
|
3:01.73
|
| 2007
|
European Indoor Championships
|
Birmingham, United Kingdom
|
3rd
|
4x400 m relay
|
3:08.14
|
| Universiade
|
Bangkok, Thailand
|
7th
|
400 m
|
46.85
|
| 1st
|
4x400 m relay
|
3:02.05
|
| 2008
|
World Indoor Championships
|
Valencia, Spain
|
4th
|
4x400 m relay
|
3:08.76
|
| Olympic Games
|
Beijing, China
|
7th
|
4x400 m relay
|
3:00.32
|
| 2009
|
Universiade
|
Belgrade, Serbia
|
2nd
|
4x400 m relay
|
3:05.69
|
Poland